Cardiac pacing has become an increasingly sophisticated field, requiring a clear understanding of electrocardiography, device function, and complex algorithms. This book provides a practical, case-based approach to everyday challenges in pacemaker management Across 10 chapters and more than 100 clinical cases, it covers key topics including ECG interpretation, chest X-ray analysis, pacing modes, sensing, thresholds, refractory periods, and arrhythmia management. Each chapter combines essential “must-know” concepts with real-world examples, culminating in a final quiz to consolidate learning. Written by device cardiologists from the LIRYC Institute (Bordeaux University, France), this book reflects daily practice in a high-volume, specialized center. It is designed as the perfect companion for the EHRA device examination, as well as a concise and practical guide for fellows, electrophysiologists, and clinicians involved in pacemaker care. This book is complemented by the educational platform Cardiocases.com, a comprehensive resource developed by cardiac electrophysiologists. The website offers more than 1000 real device tracings, over 20 expert-written books, and a wide range of educational videos and interactive tools. It provides structured learning in pacing, defibrillation, and ECG interpretation, making it an ideal companion to deepen understanding and reinforce the concepts presented in this book.